A. I think B. My subject today is C. What about using D. What's E. I have a problem with F. I need some G. One thing we could do is H. Can I have your I. I really enjoy J. I'm afraid I can't make 4. A: ( ) the target market? B: It's aimed at stylish young men who want to look good. 5. A: ( ) training to do my job properly. B: I'm sorry. It's just not possible. 6. A: ( ) social networking sites? B: I'm not sure that's a good idea.